I think the answer is source of influence
I would be able to help if you had a picture of it up
its consiterd a disease because it can have a risk of heart attacks and it can cause your body not to function right meaning no more getting up to do things and no more seeing the sun or the birds unless you have a weel chair and its consitered a disease because you are mostlikly to die a couple years ater unless you change your way and loses weight.
i hope this helps
The diaphragm moves upward, making the chest cavity larger, and air flows in.
